DE69620023T2 - MODEM LOOP CURRENT DETECTION SYSTEM FOR DETECTING A LOSS OF A LOOP IN A SUB-INTERCOM - Google Patents

MODEM LOOP CURRENT DETECTION SYSTEM FOR DETECTING A LOSS OF A LOOP IN A SUB-INTERCOM

Info

Publication number
DE69620023T2
DE69620023T2 DE69620023T DE69620023T DE69620023T2 DE 69620023 T2 DE69620023 T2 DE 69620023T2 DE 69620023 T DE69620023 T DE 69620023T DE 69620023 T DE69620023 T DE 69620023T DE 69620023 T2 DE69620023 T2 DE 69620023T2
Authority
DE
Germany
Prior art keywords
loop
intercom
sub
loss
detecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69620023T
Other languages
German (de)
Other versions
DE69620023D1 (en
Inventor
Alan Pitsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GBGB9600002.1A external-priority patent/GB9600002D0/en
Priority claimed from GBGB9613608.0A external-priority patent/GB9613608D0/en
Application filed by Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Publication of DE69620023D1 publication Critical patent/DE69620023D1/en
Application granted granted Critical
Publication of DE69620023T2 publication Critical patent/DE69620023T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0701—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips at least one of the integrated circuit chips comprising an arrangement for power management
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0008—General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G06K7/0021—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers for reading/sensing record carriers having surface contacts
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/0013—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers
    • G06K7/0086—Methods or arrangements for sensing record carriers, e.g. for reading patterns by galvanic contacts, e.g. card connectors for ISO-7816 compliant smart cards or memory cards, e.g. SD card readers the connector comprising a circuit for steering the operations of the card connector
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J9/00—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification
    • H03J9/06—Remote-control of tuned circuits; Combined remote-control of tuning and other functions, e.g. brightness, amplification using electromagnetic waves other than radio waves, e.g. light
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/22—Modifications for ensuring a predetermined initial state when the supply voltage has been applied
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
    • H03K17/795—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors
    • H03K17/7955—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar transistors using phototransistors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/7385—Programmable or microprocessor-controlled
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H04M1/745—Protection devices or circuits for voltages surges on the line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/82—Line monitoring circuits for call progress or status discrimination

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Telephonic Communication Services (AREA)
  • Power Sources (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Selective Calling Equipment (AREA)
  • Noise Elimination (AREA)
  • Optical Communication System (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Air Bags (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Communication Control (AREA)
  • Filters And Equalizers (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
DE69620023T 1995-12-22 1996-12-18 MODEM LOOP CURRENT DETECTION SYSTEM FOR DETECTING A LOSS OF A LOOP IN A SUB-INTERCOM Expired - Lifetime DE69620023T2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US917895P 1995-12-22 1995-12-22
GBGB9600002.1A GB9600002D0 (en) 1996-01-02 1996-01-02 Receiver for compressed television information
GBGB9613608.0A GB9613608D0 (en) 1996-06-28 1996-06-28 40mhz VCXO and loop filter for digital symbol lock timing for high speed modems
PCT/US1996/020117 WO1997023985A1 (en) 1995-12-22 1996-12-18 Modem loop current detect system to detect an off-hook condition in an extension telephone

Publications (2)

Publication Number Publication Date
DE69620023D1 DE69620023D1 (en) 2002-04-25
DE69620023T2 true DE69620023T2 (en) 2002-08-22

Family

ID=27268058

Family Applications (3)

Application Number Title Priority Date Filing Date
DE69636523T Expired - Lifetime DE69636523T2 (en) 1995-12-22 1996-12-17 AUTOMATIC PARTICIPANT RECALL SYSTEM
DE69604596T Expired - Lifetime DE69604596T2 (en) 1995-12-22 1996-12-17 ERROR DETECTION AND SIGNAL CHANGE CIRCUIT
DE69620023T Expired - Lifetime DE69620023T2 (en) 1995-12-22 1996-12-18 MODEM LOOP CURRENT DETECTION SYSTEM FOR DETECTING A LOSS OF A LOOP IN A SUB-INTERCOM

Family Applications Before (2)

Application Number Title Priority Date Filing Date
DE69636523T Expired - Lifetime DE69636523T2 (en) 1995-12-22 1996-12-17 AUTOMATIC PARTICIPANT RECALL SYSTEM
DE69604596T Expired - Lifetime DE69604596T2 (en) 1995-12-22 1996-12-17 ERROR DETECTION AND SIGNAL CHANGE CIRCUIT

Country Status (12)

Country Link
US (1) US6442255B1 (en)
EP (5) EP0868781B1 (en)
JP (5) JP3573350B2 (en)
KR (5) KR100408983B1 (en)
CN (5) CN1166162C (en)
AU (5) AU1151997A (en)
BR (3) BR9612168A (en)
CA (1) CA2240287C (en)
DE (3) DE69636523T2 (en)
HK (1) HK1018651A1 (en)
MX (5) MX9805004A (en)
WO (5) WO1997023989A1 (en)

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US20020112241A1 (en) * 2001-02-14 2002-08-15 Cocchi Ronald P. Internet service provider callback for satellite systems
KR20030005822A (en) * 2001-07-10 2003-01-23 삼성전자 주식회사 Reset device for protecting smart card
KR100459212B1 (en) * 2001-11-06 2004-12-03 엘지.필립스 엘시디 주식회사 Sputter of manufacturing Liquid Crystal Display device
US7269254B2 (en) * 2002-05-21 2007-09-11 Silicon Laboratories, Inc. Integrated driver circuitry
EP1391840A1 (en) * 2002-08-21 2004-02-25 Thomson Licensing S.A. Appliance with an IC card reader and overload protection
KR20040072881A (en) * 2003-02-11 2004-08-19 엘지산전 주식회사 Infrared serial converting apparatus
US7239693B2 (en) * 2003-06-30 2007-07-03 Bellsouth Intellectual Property Corporation Network-based timed ring suppression
US7443967B1 (en) 2003-09-29 2008-10-28 At&T Intellectual Property I, L.P. Second communication during ring suppression
CA2490974C (en) * 2004-12-23 2016-05-17 Bce Inc Method, system and apparatus for establishing a packet-based connection with a dial up modem
RU2413379C2 (en) * 2005-09-15 2011-02-27 Тайко Сэйфти Продактс Канада Лтд. Communication interface of telephone line
US7835516B2 (en) 2005-12-29 2010-11-16 Tyco Safety Products Canada Ltd. Direct access arrangement device
CN101472010B (en) * 2007-12-27 2011-05-18 华为技术有限公司 Method, system and device for implementing telephone desk lamp management
CN101295349B (en) * 2008-05-30 2011-07-06 北京飞天诚信科技有限公司 Smart card data interception system and control method
US8280070B2 (en) * 2008-08-20 2012-10-02 Siemens Industry, Inc. Arrangement and method for communicating audio and DC signals
CN101615152B (en) * 2009-07-13 2013-07-03 中兴通讯股份有限公司 Method and device for detecting hot plug fault of storage card
CN102025412B (en) * 2009-09-16 2014-11-05 海洋王照明科技股份有限公司 Infrared receiving circuit
CN103873610A (en) * 2012-12-13 2014-06-18 上海共联通信信息发展有限公司 Public telephone terminal device with long service life
CN109561194B (en) * 2018-12-27 2021-08-06 深圳市新国都支付技术有限公司 POS machine dialing method and device
CN112054482B (en) * 2020-08-06 2022-05-06 三峡大学 Converter transformer zero sequence differential protection anti-misoperation method based on DTW algorithm

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Also Published As

Publication number Publication date
HK1018651A1 (en) 1999-12-30
KR100454013B1 (en) 2005-05-09
MX9805005A (en) 1998-11-30
AU1467397A (en) 1997-07-17
JP2000502534A (en) 2000-02-29
EP0868781A1 (en) 1998-10-07
KR19990072224A (en) 1999-09-27
CN1095269C (en) 2002-11-27
AU715450B2 (en) 2000-02-03
WO1997023954A1 (en) 1997-07-03
EP0868805A1 (en) 1998-10-07
MX9805008A (en) 1998-11-30
EP0868807A1 (en) 1998-10-07
KR100490016B1 (en) 2005-08-31
KR100419331B1 (en) 2004-05-24
JP3573350B2 (en) 2004-10-06
CN1166162C (en) 2004-09-08
KR19990072220A (en) 1999-09-27
EP0868810A1 (en) 1998-10-07
BR9612168A (en) 1999-07-13
BR9612170A (en) 1999-07-13
BR9612176A (en) 1999-07-13
MX9805004A (en) 1998-11-30
CN1209245A (en) 1999-02-24
EP0868781B1 (en) 2002-04-10
CA2240287A1 (en) 1997-07-03
MX9805007A (en) 1998-11-30
EP0868704A1 (en) 1998-10-07
CN1126056C (en) 2003-10-29
DE69636523T2 (en) 2007-04-05
DE69604596T2 (en) 2000-01-20
EP0868810B1 (en) 2006-09-06
AU1424497A (en) 1997-07-17
CN1097878C (en) 2003-01-01
WO1997023840A1 (en) 1997-07-03
EP0868704B1 (en) 1999-10-06
WO1997023985A1 (en) 1997-07-03
AU1151997A (en) 1997-07-17
MX9805001A (en) 1998-11-30
CN1219304A (en) 1999-06-09
DE69604596D1 (en) 1999-11-11
JP4452330B2 (en) 2010-04-21
CN1209209A (en) 1999-02-24
EP0868805B1 (en) 2002-03-20
KR100408983B1 (en) 2004-03-24
US6442255B1 (en) 2002-08-27
CN1166158C (en) 2004-09-08
WO1997023987A1 (en) 1997-07-03
DE69620023D1 (en) 2002-04-25
KR19990072221A (en) 1999-09-27
JP2000516358A (en) 2000-12-05
AU1419997A (en) 1997-07-17
JP2000505257A (en) 2000-04-25
JP4044962B2 (en) 2008-02-06
KR100422229B1 (en) 2004-06-16
JP2000513515A (en) 2000-10-10
KR19990072225A (en) 1999-09-27
DE69636523D1 (en) 2006-10-19
KR19990072219A (en) 1999-09-27
JP4077877B2 (en) 2008-04-23
BR9612170B1 (en) 2009-05-05
CN1205821A (en) 1999-01-20
CN1209243A (en) 1999-02-24
AU1290897A (en) 1997-07-17
JP2000502476A (en) 2000-02-29
CA2240287C (en) 2002-09-10
WO1997023989A1 (en) 1997-07-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition